Imagine Player A notices a target in 180 ms but takes 300 ms to move and settle the cursor. Player B notices it in 210 ms but needs only 180 ms to acquire it. Player B completes the full action sooner despite having the slower simple reaction.
That is why aim trainers should not be interpreted as direct substitutes for simple reaction tests.
A target close to the cursor requires less movement than one across the screen. The size of the target also changes how precisely the movement must stop.
Fitts’ law models this relationship between target distance, target width and movement time.
If the pointer or crosshair begins near likely targets, less movement is needed after detection. Good positioning effectively removes part of the post-reaction movement burden.
In games this is one reason strong players can appear to react instantly: some of the work was done before the opponent appeared.
A cursor that reaches the target region quickly but overshoots or clicks outside it has not completed the task successfully. Aim performance therefore includes a speed–accuracy trade-off.
When improving, look for lower acquisition times without a corresponding collapse in hit rate.
Track both. If Classic improves while Aim does not, movement control may be the bottleneck. If Aim improves with a stable Classic score, you may be getting more efficient at target acquisition.
No. Aim speed includes movement and accuracy after the target is detected.
It can reduce the movement required after detection, which can improve total time to a successful action.
You can train both. For aim, beginners often benefit from accuracy-first target acquisition while using a simple test separately to track reaction latency.